43results about How to "Shorten the drying cycle" patented technology

The invention discloses a tobacco hanging rack for curing flue-cured tobacco and a method for using the same. There is a vertical support (2) between the cigarette rack (1) and the ground, and the tobacco leaf with the leaf handle facing down is clamped in the rectangular tobacco rack (1), and the tobacco leaf on the clamping surface of the rectangular tobacco rack (1) The top tobacco leaves are inserted with cuttings. The present invention combines the advantages of knitting tobacco curing and loose leaf curing, and proposes a new tobacco loading device and its operation mode, which can be completed or even exceed the drying time of loose leaf curing tobacco leaves The amount of labor is almost the same as that of loose leaf curing, and the quality of tobacco leaf curing is similar to that of braided tobacco. If it can be extended, it can solve the problem of braided tobacco and loose leaf curing. Disadvantages, with the applicant's statistics, the income of tobacco farmers can be increased by 260 yuan per mu, and the cost can be saved by 300 yuan.

The invention provides a multifunctional filter plate, a filter press provided with the multifunctional filter plate and a making method of the multifunctional filter plate. The multifunctional filter plate comprises a core plate of a flat plate structure, filter plate frames fixedly arranged at the outer edges of the left side and the right side of the core plate, electrode heating plates fixedly arranged between the core plate and the filter plate frames and a feeding hole penetrating through the electrode heating plates and the core plate in the left-right direction; a material filling cavity communicated with the feeding hole is formed between the inner circumferential surface of each filter plate frame and the outer side face of the corresponding electrode heating plate, each electrode heating plate is provided with a plurality of protruding parts which protrude outwards and are arranged in the corresponding material filling cavity, an inner water flow groove is formed in the inner side of each protruding part, the left outer side face and the right outer side face of the core plate are provided with a plurality of outer water flow grooves, the inner water flow grooves and the outer water flow grooves are communicated to form a heating cavity, and the electrode heating plates are connected with a power source through wires. Filter cakes in the material filling cavities can be subjected to heating dehydration and electrodialytic deep dehydration through the electrode heating plates, so that the moisture content of the filter cakes is further lowered.

The invention belongs to the technical field of sludge treatment, and in particular relates to a method for assisting biological drying of sludge by external heating. In this method, the sludge to be dried and auxiliary materials are stirred and mixed in proportion, and then high-temperature thermophilic fermentation microorganisms are added to form a mixture material, and the fermentation microorganisms in the sludge to be dried ferment the mixture material to form a primary fermentation pile; Aerobic aeration is carried out on the body, and at the same time, the temperature of the primary fermentation pile is assisted by intermittent heating through an external heat source; the heat generated by the aerobic fermentation of high-temperature thermophilic fermentation microorganisms makes the second fermentation pile body reheated for 12 to 18 hours; When the temperature of the fermentation pile drops below 50°C, the fermenting microorganisms ferment and continuously heat the three fermentation piles through an external heating source at the same time. When the temperature rises to 65-70°C, the external heating is stopped, and the moisture content is reduced by repeated repetitions. to below 35%. Therefore, the method greatly saves sludge drying time and treatment cost, has low energy consumption, shortens the drying cycle, and realizes rapid biological drying of sludge.

The invention discloses a low-temperature drying method and device for residual activated sludge in sewage treatment. The device includes sludge freezing equipment, a sludge curing room, a sludge thawing and preliminary dehydration device, sludge dehydration equipment and sludge Air-drying device: The residual activated sludge after preliminary dehydration treatment in the sewage treatment plant is sequentially processed by the above-mentioned device to obtain low-temperature dried sludge. The present invention cooperates with the sludge thawing device, the sludge dehydration device and the sludge air-drying device to continuously dehydrate and air-dry the sludge, shorten the sludge drying period, and have an obvious drying effect. All drying processes are carried out at normal temperature and below, which reduces the volatile gas produced by the secondary fermentation of microorganisms in the sludge, thereby reducing pollution. The invention directly freezes the sludge without adding other chemical agents, reduces the drying cost, keeps the biological characteristics of the sludge unchanged, and lays a foundation for the resource utilization of the sludge.

The invention discloses a film drying system and method for exhausting flue gas waste heat through garbage incineration to dry garbage. The film drying system comprises a heat exchanger and a stacking bin. The heat exchanger is provided with a flue gas exhaust inlet and a flue gas exhaust outlet communicating with the flue gas exhaust inlet. The flue gas exhaust inlet is provided with a flue gas exhaust pipe communicating with a flue gas exhaust chimney. The heat exchanger is provided with an air inlet and an air outlet communicating with the air inlet. Multiple parallel ventilating pipelines are arranged at the bottom of the stacking bin and communicate with the air outlet, and the top of the stacking bin is covered with a biological drying film in sealing fit. Nozzles for spraying air into the stacking bin are arranged on the ventilating pipelines, and the stacking bin is provided with a leachate recovery device capable of enabling the outlet ends of the ventilating pipelines to communicate with the stacking bin. The film drying system and method exhaust the flue gas waste heat through garbage incineration to dry the garbage, so that it is avoided that stinks are exhausted in the drying process, and the drying period of the garbage is shortened.

The invention provides a dredged sediment dewatering and drying stockyard and an establishment method thereof, belonging to the environmental engineering technical field. The dredged sediment dewatering and drying stockyard comprises the stockyard encircled by a surrounding cofferdam, a drain outlet positioned at the upper part of the cofferdam of the stockyard, a plurality of drainage ditches which are parallel to each other and positioned at the lower part of the stockyard, drainage pipes, seepage gravel and a plurality of vertical guide tubes, wherein, the drainage pipes are laid in the drainage ditches; the seepage gravel is arranged between the drainage ditches and the drainage pipes; two ends of the drainage pipes are sequentially equipped with a plurality of the vertical guide tubes which are parallel to each other and connected with an external blower system; and the drainage pipes are arranged in the drainage ditches on the bottom of the stockyard and arranged towards the drain outlet slantwise, and the drain outlet is arranged on the cofferdam edge at one side of the stockyard. The invention can enhance the bearing capacity of the stockyard and shorten the occupied time of the temporary dredged sediment stockyard site.